The Bureau of Fisheries and Aquatic Resources (BFAR) said on Saturday that coastal areas in two provinces in Bicol are positive for red tide. BFAR said the latest shellfish samples collected from Sorsogon Bay and Milagros town in Masbate proved positive for the paralytic toxin. Nonie Enolva, BFAR Bicol spokesperson, paralytic shellfish poison (PSP) is a toxin that causes red tide. She said samples are considered positive for red tide when they exceed 60 micrograms of the PSP toxin saxitoxin.

Red tide hits Bicol coasts. (2021, June 27). Daily Tribune, p. B15.